In Christianity, the term was originally applied to a Christian who lives the eremitic life out of a religious conviction, namely the Desert Theology of the Old Testament (i.e., the forty years wandering in the desert[2] that was meant to bring about a change of heart).

Often, both in religious and secular literature, the term "hermit" is also used loosely for any Christian living a secluded prayer-focused life, and sometimes interchangeably with anchorite/anchoress, recluse and "solitary". Other religions, for example, Buddhism, Hinduism, Islam, (Sufism) and Taoism, also have hermits in the sense of individuals living an ascetic form of life.

In modern colloquial usage, "hermit" denotes anyone living apart from the rest of society, or simply participating in fewer social events, for any reason.

The word hermit comes from the Latinĕrēmīta,[4] the latinisation of the Greek ἐρημίτης (erēmitēs), "of the desert",[5] which in turn comes from ἔρημος (erēmos),[6] signifying "desert", "uninhabited", hence "desert-dweller"; adjective: "eremitic".

Because the life of the Christian hermit, both in ancient and in modern times, is rooted in the Desert Theology of the Old Testament, it is a life entirely given to the praise of God and the love and, through the hermit's penance and prayers, also the service of all humanity. The latter is crucial to the correct understanding of the eremitic vocation, since both Jewish and Christian tradition holds that God created man (i.e., the individual human being) relational,[7] which means that solitude can never be the purpose of any Christian vocation but only a conducive environment for striving after a particular spiritual purpose that forms part of our common human vocation.

In the common Christian tradition the first known Christian hermit in Egypt was Paul of Thebes (fl. 3rd century), hence also called "St. Paul the first hermit". His disciple Antony of Egypt (fl. 4th century), often referred to as "Antony the Great", is perhaps the most renowned of all the very early Christian hermits owing to the biography by his friend Athanasius of Alexandria. An antecedent for Egyptian eremiticism may have been the Syrian solitary or "son of the covenant" (Aramaicbar qəyāmā) who undertook special disciplines as a Christian.[8] In the Middle Ages some Carmelite hermits claimed to trace their origin to Jewish hermits organized by Elijah.

Christian hermits in the past have often lived in isolated cells or hermitages, whether a natural cave or a constructed dwelling, situated in the desert or the forest. They tended to be sought out for spiritual advice and counsel. Some eventually acquired so many disciples that they had no physical solitude at all.

The early Christian Desert Fathers wove baskets to exchange for bread. In medieval times hermits were also found within or near cities where they might earn a living as a gate keeper or ferryman.

From the Middle Ages and down to modern times eremitical monasticism has also been practiced within the context of religious institutes in the Christian West. For example, in the Catholic Church the Carthusians and Camaldolese arrange their monasteries as clusters of hermitages where the monks live most of their day and most of their lives in solitary prayer and work, gathering only relatively briefly for communal prayer and only occasionally for community meals and recreation. The Cistercian, Trappist and Carmelite orders, which are essentially communal in nature, allow members who feel a calling to the eremitic life, after years living in the cenobium or community of the monastery, to move to a cell suitable as a hermitage on monastery grounds. This applies to both their monks and their nuns. There have also been many hermits who chose that vocation as an alternative to other forms of monastic life. In the 11th century, the life of the hermit gained recognition as a legitimate independent pathway to salvation. Many hermits in that century and the next came to be regarded as saints.[9]

The term "anchorite" (from the Greekἀναχωρέωanachōreō, signifying "to withdraw", "to depart into the country outside the circumvallate city") is often used as a synonym for hermit, not only in the earliest written sources but throughout the centuries.[10] Yet the anchoritic life, while similar to the eremitic life, can also be distinct from it. Anchorites and anchoresses lived the religious life in the solitude of an "anchorhold" (or "anchorage"), usually a small hut or "cell", typically built against a church.[11] The door of anchorages tended to be bricked up in a special ceremony conducted by the local bishop after the anchorite had moved in. Medieval churches survive that have a tiny window ("squint") built into the shared wall near the sanctuary to allow the anchorite to participate in the liturgy by listening to the service and to receive Holy communion. Another window led out into the street or cemetery, enabling charitable neighbours to deliver food and other necessities. Clients seeking the anchorite's advice might also use this window to consult him or her.[12]

As mentioned above, the Carthusian and Camaldolese orders of monks and nuns preserve their original way of life as essentially eremitical within a cenobitical context, that is, the monasteries of these orders are in fact clusters of individual hermitages where monks and nuns spend their days alone with relatively short periods of prayer in common daily and weekly.

Also, as mentioned above, other orders which are essentially cenobitical, most notably the Trappists, maintain a tradition that allows individual monks or nuns, when they have reached a certain level of maturity within the community, to pursue the life of the hermit on monastery grounds under the supervision of the abbot or abbess. Thomas Merton was among those Trappists who undertook this way of life.

The earliest form of Christian eremitic or anchoritic living preceded that as a member of a religious institute, since monastic communities and religious institutes are later developments of the monastic life. Today an increasing number of Christian faithful feel again a vocation to live the eremitic life, whether in the remote countryside or in a city in stricter separation from the world, without having passed through life in a monastic community first. Bearing in mind that the meaning of the eremitic vocation is the Desert Theology of the Old Testament (i.e., the 40 years wandering in the desert that was meant to bring about a change of heart), it may be said that the desert of the urban hermit is that of their heart, purged through kenosis to be the dwelling place of God alone.

So as to provide for men and women who feel a calling to the eremitic or anchoritic life without being or becoming a member of an institute of consecrated life, but desire its recognition by the Roman Catholic Church as a form of consecrated life nonetheless, the Code of Canon Law1983 legislates in the Section on Consecrated Life (canon 603) as follows:

§1 Besides institutes of consecrated life the Roman Catholic Church recognizes the eremitic or anchoritic life by which the Christian faithful devote their life to the praise of God and salvation of the world through a stricter separation from the world, the silence of solitude and assiduous prayer and penance.

Canon 603 §2 therefore lays down certain requirements for those who feel a vocation to the kind of eremitic life that is recognized by the Roman Catholic Church as one of the "other forms of consecrated life". They usually are referred to as "diocesan hermits".

The norms of canon 603 do not apply to the many other Roman Catholic faithful who live alone and devote themselves to fervent prayer for the love of God without however feeling called by God to seek recognition of their prayerful solitary life from the Roman Catholic Church by entering the consecrated life.

From the very beginning of the Church there were men and women who set out to follow Christ with greater liberty, and to imitate him more closely, by practicing the evangelical counsels. They led lives dedicated to God, each in his own way. Many of them, under the inspiration of the Holy Spirit, became hermits or founded religious families. These the Church, by virtue of her authority, gladly accepted and approved.

Bishops will always strive to discern new gifts of consecrated life granted to the Church by the Holy Spirit; the approval of new forms of consecrated life is reserved to the Apostolic See. (Footnote: Cf. CIC, can. 605).

The Eremitic Life

Without always professing the three evangelical counsels publicly, hermits "devote their life to the praise of God and salvation of the world through a stricter separation from the world, the silence of solitude and assiduous prayer and penance". (Footnote: CIC, can. 603 §1)

They manifest to everyone the interior aspect of the mystery of the Church, that is, personal intimacy with Christ. Hidden from the eyes of men, the life of the hermit is a silent preaching of the Lord, to whom he has surrendered his life simply because he is everything to him. Here is a particular call to find in the desert, in the thick of spiritual battle, the glory of the Crucified One.

The norms of the Catholic Church for the consecrated eremitic and anchoritic life (cf. canon 603) do not include corporal works of mercy. Nevertheless, every hermit, like every Christian, is bound by the law of charity and therefore ought to respond generously, as his or her own circumstances permit, when faced with a specific need for corporal works of mercy. However, since hermits, like every Christian, are also bound by the law of work, and therefore have to earn their living, they have to do so by any means locally available that is compatible with Christian teaching. Therefore (self-)employment in the care sector may be a work option for diocesan hermits so qualified, providing they can convince their bishop that this will not keep them from observing their obligations of the eremitic vocation in accordance with canon 603, under which they have made their vow.

Although canon 603 makes no provision for associations of hermits, these do exist (for example the "Hermits of Bethlehem" in Chester NJ and the "Hermits of Saint Bruno" in the US; see also lavra, skete).[14]

Not all the Roman Catholic lay members that feel that it is their vocation to dedicate themselves to God in a prayerful solitary life perceive it as a vocation to some form of consecrated life. An example of this is life in a Poustinia, an Eastern Catholic expression of eremitic religious living that is finding adherents also in the West.

In the Canon Law of the Episcopal Church, those who make application to their diocesan bishop and who persevere in whatever preparatory program the bishop requires, take vows that include lifelong celibacy. They are referred to as "solitaries" rather than "hermits". Each selects a bishop other than their diocesan as an additional spiritual resource and, if necessary, an intermediary.

In the Eastern Christian churches one traditional variation of the Christian eremitic life is the semi-eremitic life in a lavra or skete, exemplified historically in Scetes, a place in the Egyptian desert, and continued in various sketes today including several regions on Mount Athos.

From a religious point of view, the solitary life is a form of asceticism, wherein the hermit renounces worldly concerns and pleasures. This can be done for many reasons, including: to come closer to the deity or deities they worship or revere, to devote one's energies to self-liberation from saṃsāra, etc. This practice appears also in Hinduism, Buddhism, and Sufism. Taoism also has a long history of ascetic and eremetical figures. In the ascetic eremitic life, the hermit seeks solitude for meditation, contemplation, and prayer without the distractions of contact with human society, sex, or the need to maintain socially acceptable standards of cleanliness or dress. The ascetic discipline can also include a simplified diet and/or manual labor as a means of support.

Rabbi Nachman of Bratzlav, the Baal Shem Tov's great-grandson, also spent much time in seclusion and instructed his disciples to set aside at least one hour a day for secluded contemplation and prayer. Some followers of Rabbi Nachman devoted themselves to seclusion, such as Rabbi Shmuel of Dashev and two generations later, Rabbi Abraham Chazan.

Rabbi Yosef Yozel Horowitz, known as the "Alter (Elder) of Novardok," succeeded his master Rabbi Yisrael Salanter in disseminating the pietistic teachings of the Lithuanian Mussar Movement. He too spent much time in seclusion, included one year during which he confined himself to a sealed room, attended by a few devoted followers.

In medieval romances, the knight errant frequently encounters hermits on his quest; such a figure, generally a wise old man, would advise him. Knights searching for the Holy Grail, in particular, learn of the errors of which they must repent, and have the significance of their encounters, dreams and visions explained to them.[16] Evil wizards would sometimes pose as hermits, to explain their presence in the wilds, and to lure heroes into a false sense of security. In Edmund Spenser's The Faerie Queene, both occurred: the knight on a quest met a good hermit, and the sorcerer Archimago took on such a pose.[17] These hermits are sometimes also vegetarians for ascetic reasons, as suggested in a passage from Sir Thomas Malory's Le Morte d'Arthur: 'Then departed Gawain and Ector as heavy (sad) as they might for their misadventure (mishap), and so rode till that they came to the rough mountain, and there they tied their horses and went on foot to the hermitage. And when they were (had) come up, they saw a poor house, and beside the chapel a little courtelage (courtyard), where Nacien the hermit gathered worts (vegetables), as he which had tasted none other meat (food) of a great while.'[18] The practice of vegetarianism may have also existed amongst actual medieval hermits outside of literature.

Hermits appear in a few of the stories of Giovanni Boccaccio's The Decameron. One of the most famous stories, the tenth story of the third day, involves the seduction of a young girl by a hermit in the desert near Gafsa; it was judged to be so obscene that it was not translated into English until the 20th century.

The main character of Tolstoy's short story "Father Sergius" is a Russian nobleman who turns to a solitary religious life and becomes a hermit after he learns that his fiancee was a discarded mistress of the czar.

John Renbourn named an album The Hermit as well as the title song. The cover shows a man similar to the images printed on the Tarot decks.

In the late 18th century, some English noblemen would have "ornamental hermits" living on their land, for instance in a folly. The hermit would be paid, provided with food and water, and given a skull, a book and an hourglass.[19] Some of these ornamental hermits did not talk to the servants, but simply repeated a phrase in Latin. Most grew beards and did not cut their nails. Notable places with ornamental hermits included Painshill and Hawkstone Park.[20]

In Star Wars, Ben Kenobi was first introduced to the audience as an old hermit, often seen by most of the in-universe characters at their surroundings as a very dangerous, crazy wizard. Later in the story it was to be revealed that he went into exile for political reasons, although it also served him for spiritual training since he was a warrior monk in his youth, and that his first name was actually Obi-Wan. Yoda, another Jedi, was also originally portrayed as a wizard or hermit.

In the Friday the 13th series, the character Jason Voorhees was believed to have died after he drowned as a child. However, this later changed when it was revealed that he survived and lived life as a hermit – only to enter a murderous rage when he witnesses the death of his mother seemingly years later (which was during the events of the original film).

In the animeDragon Ball, a martial-arts master named Muten Roshi is often referred to as a Turtle Hermit, despite the fact that over the course of the series characters are often visiting or even living in his island home.

Monty Python had a sketch about two hermits agreeing at the beginning "There's no point frigging your life in idleness and trivial chit-chats" but the conversation quickly degenerate into a gossip about their hermit neighbors and their caves as if it was an ordinary suburban gossip. It ends with the punchline: "It's still better, being a hermit, at least you meet people" – "Oh yes, I wouldn't go back to public relations."

The primary antagonist of Yogi's First Christmas is a character by the name of Herman the Hermit. He is a solitary, misanthropic individual who hates Christmas, and who "only wants to be left alone."

Along the southern rim of the Grand Canyon there is a popular location known as Hermit's Rest, at the end of Hermit Road. The location was named for Louis Boucher. Around 1891, Boucher - a Canadian-born prospector - staked claims below present-day Hermits Rest. With help, Boucher carved a trail into the canyon and for years lived alone at nearby Dripping Springs. He has been described as a kind, gentle soul. Though not a true hermit, Boucher is the 'hermit' for whom local features around the southern rim are named.